--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Lib/CGIHTTPServer.py Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,366 @@
+"""CGI-savvy HTTP Server.
+
+This module builds on SimpleHTTPServer by implementing GET and POST
+requests to cgi-bin scripts.
+
+If the os.fork() function is not present (e.g. on Windows),
+os.popen2() is used as a fallback, with slightly altered semantics; if
+that function is not present either (e.g. on Macintosh), only Python
+scripts are supported, and they are executed by the current process.
+
+In all cases, the implementation is intentionally naive -- all
+requests are executed sychronously.
+
+SECURITY WARNING: DON'T USE THIS CODE UNLESS YOU ARE INSIDE A FIREWALL
+-- it may execute arbitrary Python code or external programs.
+
+Note that status code 200 is sent prior to execution of a CGI script, so
+scripts cannot send other status codes such as 302 (redirect).
+"""
+
+
+__version__ = "0.4"
+
+__all__ = ["CGIHTTPRequestHandler"]
+
+import os
+import sys
+import urllib
+import BaseHTTPServer
+import SimpleHTTPServer
+import select
+
+
+class CGIHTTPRequestHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):
+
+ """Complete HTTP server with GET, HEAD and POST commands.
+
+ GET and HEAD also support running CGI scripts.
+
+ The POST command is *only* implemented for CGI scripts.
+
+ """
+
+ # Determine platform specifics
+ have_fork = hasattr(os, 'fork')
+ have_popen2 = hasattr(os, 'popen2')
+ have_popen3 = hasattr(os, 'popen3')
+
+ # Make rfile unbuffered -- we need to read one line and then pass
+ # the rest to a subprocess, so we can't use buffered input.
+ rbufsize = 0
+
+ def do_POST(self):
+ """Serve a POST request.
+
+ This is only implemented for CGI scripts.
+
+ """
+
+ if self.is_cgi():
+ self.run_cgi()
+ else:
+ self.send_error(501, "Can only POST to CGI scripts")
+
+ def send_head(self):
+ """Version of send_head that support CGI scripts"""
+ if self.is_cgi():
+ return self.run_cgi()
+ else:
+ return SimpleHTTPServer.SimpleHTTPRequestHandler.send_head(self)
+
+ def is_cgi(self):
+ """Test whether self.path corresponds to a CGI script,
+ and return a boolean.
+
+ This function sets self.cgi_info to a tuple (dir, rest)
+ when it returns True, where dir is the directory part before
+ the CGI script name. Note that rest begins with a
+ slash if it is not empty.
+
+ The default implementation tests whether the path
+ begins with one of the strings in the list
+ self.cgi_directories (and the next character is a '/'
+ or the end of the string).
+ """
+
+ path = self.path
+
+ for x in self.cgi_directories:
+ i = len(x)
+ if path[:i] == x and (not path[i:] or path[i] == '/'):
+ self.cgi_info = path[:i], path[i+1:]
+ return True
+ return False
+
+ cgi_directories = ['/cgi-bin', '/htbin']
+
+ def is_executable(self, path):
+ """Test whether argument path is an executable file."""
+ return executable(path)
+
+ def is_python(self, path):
+ """Test whether argument path is a Python script."""
+ head, tail = os.path.splitext(path)
+ return tail.lower() in (".py", ".pyw")
+
+ def run_cgi(self):
+ """Execute a CGI script."""
+ path = self.path
+ dir, rest = self.cgi_info
+
+ i = path.find('/', len(dir) + 1)
+ while i >= 0:
+ nextdir = path[:i]
+ nextrest = path[i+1:]
+
+ scriptdir = self.translate_path(nextdir)
+ if os.path.isdir(scriptdir):
+ dir, rest = nextdir, nextrest
+ i = path.find('/', len(dir) + 1)
+ else:
+ break
+
+ # find an explicit query string, if present.
+ i = rest.rfind('?')
+ if i >= 0:
+ rest, query = rest[:i], rest[i+1:]
+ else:
+ query = ''
+
+ # dissect the part after the directory name into a script name &
+ # a possible additional path, to be stored in PATH_INFO.
+ i = rest.find('/')
+ if i >= 0:
+ script, rest = rest[:i], rest[i:]
+ else:
+ script, rest = rest, ''
+
+ scriptname = dir + '/' + script
+ scriptfile = self.translate_path(scriptname)
+ if not os.path.exists(scriptfile):
+ self.send_error(404, "No such CGI script (%r)" % scriptname)
+ return
+ if not os.path.isfile(scriptfile):
+ self.send_error(403, "CGI script is not a plain file (%r)" %
+ scriptname)
+ return
+ ispy = self.is_python(scriptname)
+ if not ispy:
+ if not (self.have_fork or self.have_popen2 or self.have_popen3):
+ self.send_error(403, "CGI script is not a Python script (%r)" %
+ scriptname)
+ return
+ if not self.is_executable(scriptfile):
+ self.send_error(403, "CGI script is not executable (%r)" %
+ scriptname)
+ return
+
+ # Reference: http://hoohoo.ncsa.uiuc.edu/cgi/env.html
+ # XXX Much of the following could be prepared ahead of time!
+ env = {}
+ env['SERVER_SOFTWARE'] = self.version_string()
+ env['SERVER_NAME'] = self.server.server_name
+ env['GATEWAY_INTERFACE'] = 'CGI/1.1'
+ env['SERVER_PROTOCOL'] = self.protocol_version
+ env['SERVER_PORT'] = str(self.server.server_port)
+ env['REQUEST_METHOD'] = self.command
+ uqrest = urllib.unquote(rest)
+ env['PATH_INFO'] = uqrest
+ env['PATH_TRANSLATED'] = self.translate_path(uqrest)
+ env['SCRIPT_NAME'] = scriptname
+ if query:
+ env['QUERY_STRING'] = query
+ host = self.address_string()
+ if host != self.client_address[0]:
+ env['REMOTE_HOST'] = host
+ env['REMOTE_ADDR'] = self.client_address[0]
+ authorization = self.headers.getheader("authorization")
+ if authorization:
+ authorization = authorization.split()
+ if len(authorization) == 2:
+ import base64, binascii
+ env['AUTH_TYPE'] = authorization[0]
+ if authorization[0].lower() == "basic":
+ try:
+ authorization = base64.decodestring(authorization[1])
+ except binascii.Error:
+ pass
+ else:
+ authorization = authorization.split(':')
+ if len(authorization) == 2:
+ env['REMOTE_USER'] = authorization[0]
+ # XXX REMOTE_IDENT
+ if self.headers.typeheader is None:
+ env['CONTENT_TYPE'] = self.headers.type
+ else:
+ env['CONTENT_TYPE'] = self.headers.typeheader
+ length = self.headers.getheader('content-length')
+ if length:
+ env['CONTENT_LENGTH'] = length
+ referer = self.headers.getheader('referer')
+ if referer:
+ env['HTTP_REFERER'] = referer
+ accept = []
+ for line in self.headers.getallmatchingheaders('accept'):
+ if line[:1] in "\t\n\r ":
+ accept.append(line.strip())
+ else:
+ accept = accept + line[7:].split(',')
+ env['HTTP_ACCEPT'] = ','.join(accept)
+ ua = self.headers.getheader('user-agent')
+ if ua:
+ env['HTTP_USER_AGENT'] = ua
+ co = filter(None, self.headers.getheaders('cookie'))
+ if co:
+ env['HTTP_COOKIE'] = ', '.join(co)
+ # XXX Other HTTP_* headers
+ # Since we're setting the env in the parent, provide empty
+ # values to override previously set values
+ for k in ('QUERY_STRING', 'REMOTE_HOST', 'CONTENT_LENGTH',
+ 'HTTP_USER_AGENT', 'HTTP_COOKIE', 'HTTP_REFERER'):
+ env.setdefault(k, "")
+ os.environ.update(env)
+
+ self.send_response(200, "Script output follows")
+
+ decoded_query = query.replace('+', ' ')
+
+ if self.have_fork:
+ # Unix -- fork as we should
+ args = [script]
+ if '=' not in decoded_query:
+ args.append(decoded_query)
+ nobody = nobody_uid()
+ self.wfile.flush() # Always flush before forking
+ pid = os.fork()
+ if pid != 0:
+ # Parent
+ pid, sts = os.waitpid(pid, 0)
+ # throw away additional data [see bug #427345]
+ while select.select([self.rfile], [], [], 0)[0]:
+ if not self.rfile.read(1):
+ break
+ if sts:
+ self.log_error("CGI script exit status %#x", sts)
+ return
+ # Child
+ try:
+ try:
+ os.setuid(nobody)
+ except os.error:
+ pass
+ os.dup2(self.rfile.fileno(), 0)
+ os.dup2(self.wfile.fileno(), 1)
+ os.execve(scriptfile, args, os.environ)
+ except:
+ self.server.handle_error(self.request, self.client_address)
+ os._exit(127)
+
+ elif self.have_popen2 or self.have_popen3:
+ # Windows -- use popen2 or popen3 to create a subprocess
+ import shutil
+ if self.have_popen3:
+ popenx = os.popen3
+ else:
+ popenx = os.popen2
+ cmdline = scriptfile
+ if self.is_python(scriptfile):
+ interp = sys.executable
+ if interp.lower().endswith("w.exe"):
+ # On Windows, use python.exe, not pythonw.exe
+ interp = interp[:-5] + interp[-4:]
+ cmdline = "%s -u %s" % (interp, cmdline)
+ if '=' not in query and '"' not in query:
+ cmdline = '%s "%s"' % (cmdline, query)
+ self.log_message("command: %s", cmdline)
+ try:
+ nbytes = int(length)
+ except (TypeError, ValueError):
+ nbytes = 0
+ files = popenx(cmdline, 'b')
+ fi = files[0]
+ fo = files[1]
+ if self.have_popen3:
+ fe = files[2]
+ if self.command.lower() == "post" and nbytes > 0:
+ data = self.rfile.read(nbytes)
+ fi.write(data)
+ # throw away additional data [see bug #427345]
+ while select.select([self.rfile._sock], [], [], 0)[0]:
+ if not self.rfile._sock.recv(1):
+ break
+ fi.close()
+ shutil.copyfileobj(fo, self.wfile)
+ if self.have_popen3:
+ errors = fe.read()
+ fe.close()
+ if errors:
+ self.log_error('%s', errors)
+ sts = fo.close()
+ if sts:
+ self.log_error("CGI script exit status %#x", sts)
+ else:
+ self.log_message("CGI script exited OK")
+
+ else:
+ # Other O.S. -- execute script in this process
+ save_argv = sys.argv
+ save_stdin = sys.stdin
+ save_stdout = sys.stdout
+ save_stderr = sys.stderr
+ try:
+ save_cwd = os.getcwd()
+ try:
+ sys.argv = [scriptfile]
+ if '=' not in decoded_query:
+ sys.argv.append(decoded_query)
+ sys.stdout = self.wfile
+ sys.stdin = self.rfile
+ execfile(scriptfile, {"__name__": "__main__"})
+ finally:
+ sys.argv = save_argv
+ sys.stdin = save_stdin
+ sys.stdout = save_stdout
+ sys.stderr = save_stderr
+ os.chdir(save_cwd)
+ except SystemExit, sts:
+ self.log_error("CGI script exit status %s", str(sts))
+ else:
+ self.log_message("CGI script exited OK")
+
+
+nobody = None
+
+def nobody_uid():
+ """Internal routine to get nobody's uid"""
+ global nobody
+ if nobody:
+ return nobody
+ try:
+ import pwd
+ except ImportError:
+ return -1
+ try:
+ nobody = pwd.getpwnam('nobody')[2]
+ except KeyError:
+ nobody = 1 + max(map(lambda x: x[2], pwd.getpwall()))
+ return nobody
+
+
+def executable(path):
+ """Test for executable file."""
+ try:
+ st = os.stat(path)
+ except os.error:
+ return False
+ return st.st_mode & 0111 != 0
+
+
+def test(HandlerClass = CGIHTTPRequestHandler,
+ ServerClass = BaseHTTPServer.HTTPServer):
+ SimpleHTTPServer.test(HandlerClass, ServerClass)
+
+
+if __name__ == '__main__':
+ test()